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State and prove work - energy theroem...

State and prove work - energy theroem .

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CBSE COMPLEMENTARY MATERIAL-WORK, ENERGY AND POWER-SHORT ANSWER QUESTIONS
  1. How high must a body be lifted to gain an amount of potential energy e...

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  2. Give an example in which a force does work on a body but fails to chan...

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  3. The string of a pendulum is 2.0m long. The bob is pulled sideways so t...

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  4. Two springs A and B are identical except that A is harder than B(K(A)g...

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  5. Find the work done if a particle moves from position r(1)=(3hati+2hatj...

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  6. Two springs A and B are identical to each other . The spring A is h...

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  7. A ball at rest is dropped from a height of 12m. It loses 25% of its ki...

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  8. State and prove work - energy theroem .

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  9. Out of kilowatt hour and electron volt, which is bigger unit of energy...

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  10. A spring obeying Hooke's law has a force constant k. Now if the spring...

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  11. Define elastic potential energy. An elastic spring of force constant k...

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  12. A car of mass 2000kg is lifted up a distance of 30m by a crane in 1 m...

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  13. Prove that bodies of identical masses exchange their velocities after ...

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  14. Statement-1:Comets move around the sun in elliptical orbits, the gravi...

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  15. Define elastic and inelastic collision. A lighter body collides with a...

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  16. 20 J work is required to stretch a spring through 0.1 m . Find the for...

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  17. A body of mass M at rest is struck by a moving body of mass. Prove tha...

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  18. A pump on the ground floor of a building can pump of water to fill a ...

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  19. In one-dimensional elastic collision, the relative velocity of approac...

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  20. A ball bounce of 80% of its original height . What fraction of its mec...

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